<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">

<head>
    <meta
        http-equiv="Content-Type"
        content="text/html; charset=utf-8"
    />
    <title>3 oneWheelAnimation</title>

    <style>
        html,
        body {
            overflow: hidden;
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 0;
        }

        #renderCanvas {
            width: 100%;
            height: 100%;
            touch-action: none;
        }
    </style>

    <script src="https://cdn.babylonjs.com/babylon.js"></script>
    <!-- 允许您将模型导入到场景中 -->
    <script src="https://cdn.babylonjs.com/loaders/babylonjs.loaders.min.js"></script>
    <!-- 允许您使用触摸屏 -->
    <script src="https://code.jquery.com/pep/0.4.3/pep.js"></script>
    <!-- earcut算法 -->
    <script src="F:/VScode/babylonjs/babylon-demo1/src/earcut.js"></script>
</head>

<body>
    <canvas
        id="renderCanvas"
        touch-action="none"
    ></canvas>
    <!-- 注意browseatouch-action="none"以获得PEPr/canvas调整大小事件的最佳效果 -->


    <script>
        const canvas = document.getElementById("renderCanvas"); //获取canvas元素
        const engine = new BABYLON.Engine(canvas, true); // Generate the BABYLON 3D engine

        //在这里添加与playground格式匹配的代码
        const createScene = function () {
            const scene = new BABYLON.Scene(engine);//使用引擎
            const camera = new BABYLON.ArcRotateCamera("camera", -Math.PI / 2, Math.PI / 2.5, 1, new BABYLON.Vector3(0, 0, -0.2));//设置摄像机
            camera.attachControl(canvas, true);
            const light = new BABYLON.HemisphericLight("light", new BABYLON.Vector3(1, 1, 0));//设置灯光

            //wheel face UVs
            const wheelUV = [];
            wheelUV[0] = new BABYLON.Vector4(0, 0, 1, 1);
            wheelUV[1] = new BABYLON.Vector4(0, 0.5, 0, 0.5);
            wheelUV[2] = new BABYLON.Vector4(0, 0, 1, 1);

            const wheelMat = new BABYLON.StandardMaterial("wheelMat");
            wheelMat.diffuseTexture = new BABYLON.Texture("F:/VScode/babylonjs/babylon-demo1/src/imgs/wheel.png");

            wheelRB = BABYLON.MeshBuilder.CreateCylinder("wheelRB", { diameter: 0.125, height: 0.05, faceUV: wheelUV })
            wheelRB.material = wheelMat;;

            //Animate the Wheels
            const animWheel = new BABYLON.Animation
                (
                    "wheelAnimation",
                    "rotation.y",
                    30,
                    BABYLON.Animation.ANIMATIONTYPE_FLOAT,
                    BABYLON.Animation.ANIMATIONLOOPMODE_CYCLE
                );

            //设置关键帧
            const wheelKeys = [];
            //At the animation key 0, the value of rotation.y is 0
            wheelKeys.push({
                frame: 0,
                value: 0
            });
            //At the animation key 30, (after 1 sec since animation fps = 30) the value of rotation.y is 2PI for a complete rotation
            wheelKeys.push({
                frame: 30,
                value: 2 * Math.PI
            });
            //set the keys
            animWheel.setKeys(wheelKeys);

            //Link this animation to a wheel
            wheelRB.animations = [];
            wheelRB.animations.push(animWheel);
            scene.beginAnimation(wheelRB, 0, 30, true);


            return scene;

        }
        const scene = createScene(); //调用createScene函数

        //注册一个渲染循环来重复渲染场景
        engine.runRenderLoop(function () {
            scene.render();
        });

        // 注意浏览器、画布大小调整事件
        window.addEventListener("resize", function () {
            engine.resize();
        });
    </script>
</body>

</html>